Question

Find the mean of the data in the bar chart below.

Answer 1

4.5, you just have to find the average

Answer 2

9/2≈4.5

Explanation:

mean is 4, 5,6,3

Find the mean of the list:

(4, 5, 6, 3)

The mean of a list of numbers is given by:

(sum of elements)/(number of elements)

(sum of elements) = 4 + 5 + 6 + 3:

(4 + 5 + 6 + 3)/(number of elements)

Counting, we see that the list has 4 elements:

(4 + 5 + 6 + 3)/4

4 + 5 + 6 + 3 = 18:

18/4

18/4 = 9/2:

Answer: 9/2≈4.5